Boat



v A J. BOTTORFF.

BOAT.

APPLICATION FILED MAR-31.1919.

Patented Feb. 10,1920.

//VVENTOR ANDREW J Berra FF vention consists of the novel features herein ANDREW Borronrrgor sAw'rELLn, CALIFORNIA,

BOAT.

To all tvho m may concern:

Be it known that I, ANDREW J. BQTTORFF,

a citizen of the'United States, residing at Sawtelle,-in the county of Los Angeles and State of California, have inventednew and usefu-llmprovements in Boats, of which the following. is a'specification.

My object is to make a boat and my inshown, described and claimed. 1

Figure 1 is a top plan view of a boat em bodyingthe principles of my invention, the view beingv taken looking in the direction indicated by the arrow 1 in Fig. 2. a Fig. 2 is a side elevation looking in the direction indicated by the arrow2 inFig. l. -Fig. 3 is a sectional detail onthe lines 3-3 of Figs. 1 and 2 and looking in the direction indicated by the arrows. J I

Fig. 4 is an inner end view of one of the propellers as seen looking in the directlon indicated by the arrow 4 in Fig. 3'.

Fig. 5 is a fragmentary vertical longi-.

tudinal section on a plane parallel with Fig. 2 and on the line 55 of Fig. 1 and looking in the direction indicated by the arrows.

Fig.6 is a fragmentary vertical cross section on the lines 6 6 of Figs. 1 and 2and looking in the direction indicated by ,the arrow 6 in Fig. 5. v h

Fig. 7 is a fragmentary vertical sectional detail on the lines 77 of Fig. 6. J

Fig. 8 is a fragmentary top viewof that portion of the boat adjacent to the lever 33.

Fig. 9 is an end elevation of-that portion.

of the boat comprising the leverx33 and'its mounting, looked at in the direction of the arrow 9, Fig. 5. V V

The keel boardl is a long straight plank. Blocks 2 and 3 are built up crosswise of the keel board 1 short. distances on each side of the longitudinal center, said blocks being made in sections so the aggregate heights may be adjusted by adding or removingjseotions. The gearing base 4 is a short plank mounted with its ends upon. the blocks 2 and 3. Seats5 and 6. are mounted upon springs. 7 and 8' and the lower ends of the springs fit upon the ends of the base 4. Bolts 9 and 10 are inserted upwardly through thev keelboard. 1 andthrough notches in the ends of the blocks 2 and 3 and through Specification of Lettersl'atent.

Patented Feb. 10, 1920.

I Application filed March 31, 1919. Serial No. 286,560.

' the ends of the base 4 and through the springs 7 and 8, and nuts 11 andv 12 are applied tothe upper ends of the bolts to hold the parts removably together. 7

Posts 13, 14, 15 and 16 are secured tothe base 4 and extend upwardly in parallel vertical positions. A board 17 is placed edgewise upon the base 4 inside of the posts 15 and 16 and secured in place, and a similar I board 18 is placed inside of the posts 13 and 14 and secured in place. The boards 19 and 20 are placed loosely upon the boards 17 and 18, and the boards 21 and 22 are placed upon the boards 19 and 20 and secured to the upper ends ofthe posts 13, 14,15 and 16, so that the boards 19 and 20 will slide endwise. Shafts 23 and 24 are mounted with their ends in the boards 19 and 2O,v spur gears 25 and 26 are mounted upon the shafts- 23 and 24, pawl wheels 27 and 28 are fixed against the sides of the gears 25 and 26inside ofthe board 19, and similar pawlgears 29 and 30 are fixed against the opposite sides of the gears inside of the board'20.

'A shaft 31 extends through the boards 21 and 22, and a spur pinion 32 is fixed upon the shaft in position to mesh alternately with the, gears 25 and 26. The gears 25 .and26 run loosely either by turning upon the shafts 23v and 24, or by turning the shafts, and the gears 25 and 26 are spaced apart and so located that when the boards 19 and 20 are moved to. the left, as in Fig. 5, the gear 25,

mesheswith the pinion 32 and the gear 26 is out of mesh, and when the boards are moved in the opposite direction the gear 26 meshes with the pinion 32 and the gear 25 is out ofmesh. V

The gear shiftinglever 33 is mounted between-the-ends of the boards 17 and 18 upon a pivot 34, there: being spacing collars upon each side of the lever to centralize the lever relative to the boards. A pin 35 connects the: lever 33 to the boards 19 and 20. A stop 36 is fastened across the end faces of the boards 21- and '22 to limit the outward swingofthe lever 33. Stop pins 37 and 38, are fixed in the upper edges of'the boards 21 and 221 and stop blocks 39 and 40 are fixed to: the boards a short distance from the pins 37 and 38 The lever 33 extends upwardly above the boards 21' and 22, and a block 41 is placed across the boards against the pins 37 and 38 and behind the lever 33, as shown in Figs.f5'and 6 to hold. the lever 33mg Wardly to slide the boards 19 and 20 to the right, as in Fig. 5, and to bring the gear into mesh with the pinion 32 When it is desired to reverse the direction of the shaft 31 the block 41 is movedto the other side of the lever, the lever 33 swung outwardly against the stop, 36 and the block inserted between the lever and the blocks 39 and 40, thereby moving the boards 19 and 20 a in the other direction. and bringing the gear 26 into mesh with the pinion 32 and. moving the gear .25 out of mesh.

The hand levers 42 and 43 are placed against the outer sides of the boards 17, 18,

19, 20, 21 and 22, and a pivot pin 44 is inare mounted through the hand-levers just above the pinion32. Pawls 48 and 49'a're v mounted upon the rod 47 and pawls 50 and 51are mounted upon the rod 46. The pawls 48 and 49 engage the pawl wheels 29 and 27, and the pawls 50 and 51 engage the, pawl wheels and 28. Horizontal elongated loops 52 are formed in the hand levers 42' and 43 to straddle the shaft 31, so that the levers may be vibrated transversely of the shaft.

' extend outwardly in a straight line.

float supported propeller wheels 53 and 54.

One operator may sit upon the seat 5 and the other upon the seat 6 and both operators may grasp the handle 45 and work the handle to and fro to operate the pawls to drive the pawl wheels, and when the gear 25 is in mesh with the pinion 32 the boat will go one way, and whenthe gear 26 is in mesh with the pinion 32 the boat will go the other way.

The float supported propeller wheels 53 and 54 are fixed upon theends of the shaft 31 outside of the hand levers 42 and 43 and The are substantially alike and each constructed as shown in Figs- 3 and .4.

A socket 55 is fixed upon the end of the shaft 31, four arms 56 extend radially from the socket, a ring 58 is secured to the arms concentric to the socket, intermediate arms 59 are secured to the ringv58, and a second ring 60 is secured to the arms 56 and 59. A

plurality of cylindrical airtight compartments 61 is placed end to end against the arms 56, a spider 62 is placed against the outer face of the outer compartment 61, said spider 62 being substantially like the spider formedby the arms 56 and 59 and the rings 58 and 60, and rods 63 are inserted through the spiders outside'of the compartments to hold the spiders to hold the compartments cleats an sorted through the lower ends of the levers 42 and 43 and through the boards 17 and 18. A handle 45 connects the upper ends of the hand levers 42 and 43, and rods 46 and 47 1 and of any desired diameter and thickness,

and any desired number, may be used, so"

that if one compartment became punctured the other compartments will not be affected. Posts 65 and 66 extend upwardly from the keel board 1 just outside of the springs 7 and 8. Cleats 67 and 68are secured along the upper outer edges ofthe keel'board 1.

Air tightcompartments 69 and 70 are placed in rows u on the keel board 1 between the against ,the posts 65 and 66. v

Boards 71 and 7 2 are'c'onnected to the upper ends of the posts 65 and 66 by hinges 7 3 and 74 and have cleats 75 and 76 to engage the compartments 69*and 70, and bolts 77 and 78 extend upwardly through the extreme ends of the keel board 1 and" through the outer ends of the boards 71 and 72, andnutsp 79 and 80 are removably mounted upon the bolts, so that by removing the nuts the boards 71- and 72 may beswungupwardly to 1 release the compartments 69 and 70, and so that by applying the nuts the compartments are securely held in place. The {inner one of the compartments '69 and the outer oneof the compartments 70 may be-pointed so as to 'cut the water and the boat will run freely in these compartments r the direction in which point. 7

Thus I have produceda boatconsisting of a cheap, light, portable knock-down construction which is'practically unsinkable and which cannot be capsized and can be readily and easily-operated byone or two operators in any kind of sea.

Various changes may departing from the spirit of my invention as claimed. 3

I claim: 1. A boat comprising a keel board, .air

tightcompartments mounted upon theends of the keel board, a propeller shaft rotatably mounted transversely of the boat, gearing for rotating the propeller shaft a Hand lever for operating the gearing and propellers mountedon the outer ends of the. shaft havmggpropeller blades on their peripheries. 1

25A boatcomprising a keel'board, air

tight compartments mounted upon the ends be made without of the keel board. a propeller shaft 'rotatably mounted transversely of the boat, a' ratchet gearing for rotating the propeller shaft a hand lever foroperating the ratchet gearing and float propellers mounted on the outerends of the propeller shaft having propeller blades ontheir peripheries, A boat comprising a keel board, air

ti ht compartments mounted upon the ends of the keel board, a propeller shaft rotatably mounted transversely of the boat, a ratchet gearing for rotating the propeller shaft, a hand lever for operating the ratchet gearing, 'float propellers mounted on the outer ends of the propeller shaft having propeller blades on their peripheries and seats mounted on the keel board conveniently positioned relative to the hand lever. V

In testimony whereof I have signed my name to this specification.

ANDREW J. 'BOTTQRFF." 

